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Directions: In the question, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.



Assertion: In the crystal lattice, the size of the cation is larger in a tetrahedral hole than in an octahedral hole.

Reason: The cations occupy more space than anions in crystal packing.

  • a)
    Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.

  • b)
    Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.

  • c)
    Assertion is true but Reason is false.

  • d)
    Assertion is false but Reason is true.

  • e)
    Assertion and Reason both are false.

Correct answer is option 'D'. Can you explain this answer?
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Directions: In thequestion, A statement of Assertion (A) is followed b...
Tetrahedral holes are smaller in size than octahedral holes. Cations usually occupy less space than anions.
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Directions: In thequestion, A statement of Assertion (A) is followed b...
Assertion: In the crystal lattice, the size of the cation is larger in a tetrahedral hole than in an octahedral hole.

Reason: The cations occupy more space than anions in crystal packing.

Explanation:
To understand the assertion and reason given in the question, we need to have a basic understanding of crystal structure and crystal packing.

Crystal Structure:
In a crystal lattice, the arrangement of atoms or ions is repeated in three dimensions. The basic repeating unit is called a unit cell. In ionic compounds, the unit cell consists of anions and cations arranged in a specific pattern. The cations and anions occupy specific positions in the crystal lattice called the crystallographic sites or holes.

Crystal Packing:
The crystal packing refers to the arrangement of ions or atoms in the crystal lattice. In ionic crystal structures, the cations and anions are closely packed to maximize the electrostatic interactions between them.

Assertion: In the crystal lattice, the size of the cation is larger in a tetrahedral hole than in an octahedral hole.

The assertion is true. In a crystal lattice, the size of the cation is larger in a tetrahedral hole than in an octahedral hole. This is because the tetrahedral hole is smaller in size compared to the octahedral hole. The cation needs to fit into these holes in the crystal lattice, and since the tetrahedral hole is smaller, the cation has to be larger in size to occupy that space.

Reason: The cations occupy more space than anions in crystal packing.

The reason is true. In crystal packing, the cations and anions are closely packed together. The cations occupy more space compared to the anions because the cations are usually larger in size. This is due to the difference in the size of the cations and anions in ionic compounds.

Explanation of the Correct Answer:
The correct answer is option D: Assertion is false but Reason is true.

Although the assertion is true, the reason given does not correctly explain the assertion. The size difference between the cation and anion is the primary factor that determines which hole the cation occupies in the crystal lattice. The reason given in the question does not provide a direct explanation for the size difference between cations and anions.
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Directions: In thequestion, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion: In the crystal lattice, the size of the cation is larger in a tetrahedral hole than in an octahedral hole.Reason: The cations occupy more space than anions in crystal packing.a)Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.b)Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.c)Assertion is true but Reason is false.d)Assertion is false but Reason is true.e)Assertion and Reason both are false.Correct answer is option 'D'. Can you explain this answer?
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Directions: In thequestion, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion: In the crystal lattice, the size of the cation is larger in a tetrahedral hole than in an octahedral hole.Reason: The cations occupy more space than anions in crystal packing.a)Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.b)Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.c)Assertion is true but Reason is false.d)Assertion is false but Reason is true.e)Assertion and Reason both are false.Correct answer is option 'D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Directions: In thequestion, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion: In the crystal lattice, the size of the cation is larger in a tetrahedral hole than in an octahedral hole.Reason: The cations occupy more space than anions in crystal packing.a)Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.b)Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.c)Assertion is true but Reason is false.d)Assertion is false but Reason is true.e)Assertion and Reason both are false.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions: In thequestion, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion: In the crystal lattice, the size of the cation is larger in a tetrahedral hole than in an octahedral hole.Reason: The cations occupy more space than anions in crystal packing.a)Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.b)Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.c)Assertion is true but Reason is false.d)Assertion is false but Reason is true.e)Assertion and Reason both are false.Correct answer is option 'D'. Can you explain this answer?.
Solutions for Directions: In thequestion, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion: In the crystal lattice, the size of the cation is larger in a tetrahedral hole than in an octahedral hole.Reason: The cations occupy more space than anions in crystal packing.a)Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.b)Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.c)Assertion is true but Reason is false.d)Assertion is false but Reason is true.e)Assertion and Reason both are false.Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
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